Method for preventing deformation of spring in quenching

The invention discloses a method for preventing deformation of a spring in quenching, comprising the following steps: adding a sleeve in a spring inner hole, then putting the spring added with the sleeve into a quenching furnace, wherein quenching charging temperature is lower than or equal to 880 D...

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Bibliographische Detailangaben
Hauptverfasser:	WANG HONGYAN, HUO JINLIANG, WANG YUMIN, HU JIANJUN, MA ZHANXUN, WEN GANGZHU, LIU SHUQIN, HOU BIAOZHENG, WANG GUOWEN, ZHANG LIFENG
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	CHEMISTRY GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUSMETALS OR ALLOYS MAKING METAL MALLEABLE BY DECARBURISATION, TEMPERING OR OTHERTREATMENTS METALLURGY METALLURGY OF IRON MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS
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Beschreibung
Zusammenfassung:	The invention discloses a method for preventing deformation of a spring in quenching, comprising the following steps: adding a sleeve in a spring inner hole, then putting the spring added with the sleeve into a quenching furnace, wherein quenching charging temperature is lower than or equal to 880 DEG C, and quenching temperature is 870+/-10 DEG C, preserving heat for 0.5-1.5h, discharging out ofthe furnace, and then performing oil quenching. The method solves the technical difficulty of easy deformation of the spring after quenching. 本发明公开了种防止弹簧淬火时产生变形的方法，包括：在弹簧内孔加装套管，然后将装有套管的弹簧放入淬火炉，淬火装炉温度≤880℃；淬火温度870±10℃，保温0.5-1.5小时，出炉后油淬。本发明解决了弹簧淬火后易变形的技术难题。